create_board · Obsidian Kanban MCP Server MCP: Risk & Policy

WHAT IT DOES

What create_board does on Obsidian Kanban MCP Server

AI agents use create_board to create or update resources in Obsidian Kanban MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Obsidian Kanban MCP Server environment.

WHY IT NEEDS A POLICY

Why create_board needs a policy

Creating a new Kanban board is a reversible write operation that modifies the vault by adding a new board artifact. It does not execute arbitrary code, delete data irreversibly, move money, or cause destructive side effects. The blast radius is limited to the addition of a single board object within the user's own vault.

From the tool's definition Tool name is 'create_board' and description states 'Create a new Kanban board'. The server description confirms it 'support[s] creating boards'. This is a create operation that adds new data to an Obsidian vault.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_board Rate-limited

create_board stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "create_board": {
      "limits": [
        {
          "counter": "create_board_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Obsidian Kanban MCP Server, so you can run agents against it safely.

FAQ

Questions about create_board

What does the create_board tool do? +

Create a new Kanban board. It is categorised as a Write tool in the Obsidian Kanban MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on create_board? +

Register the Obsidian Kanban MCP Server MCP server in PolicyLayer and add a rule for create_board: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Obsidian Kanban MCP Server. Nothing to install.

What risk level is create_board? +

create_board is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit create_board? +

Yes. Add a rate_limit block to the create_board rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block create_board completely? +

Set action: deny in the PolicyLayer policy for create_board. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides create_board? +

create_board is provided by the Obsidian Kanban MCP Server MCP server (trung-persefoni/obsidian-kanban-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.